the are all cities and pretty much beside each other..  some cities do share streets such as Burnaby and and Vancouver share a lot of major streets.  I would say that each city is about 20-25 km in radius but not too sure..  yeah it is something like Toronto and york and all those little city.  all these citys can be joined together and be called the  Lower mainland much like how we refer to the metropolis of Toronto...hope I got that right...... 
		
	
		
		
		
		
			
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				Richie
			 
		
		
		
		
	
		
		
	
	
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